<%
            String req = request.getParameter("req");
            if (req.length() <=0 || req.length() >50) {
                out.println("<img id=\"valid_streetname\" alt=\":(\" src=\"../pictures/invalid.jpg\"/>");
                session.setAttribute("VALID_STREETNAME", "FALSE");
            }  else {
                out.println("<img id=\"valid_streetname\" alt=\":)\" src=\"../pictures/valid.jpg\"/>");
                session.setAttribute("VALID_STREETNAME", "TRUE");
            }
%>
